Shingle-sawing machine



(No Model.) 3 Sheets-Sheet 1.

E. ANDERSON.

SHINGLB SAWING MACHINE.

No. 397,328. Patented Feb. 5,1889.

(No Model.) v 3 Sheets-Sheet 2.

E. ANDERSON.

SHINGLB SAWING MACHINE.

No. 397,328. Patented Feb. 5, 1889.

N. PETERS. Ptwl-iihogrlpher. Wishingon. D. C.

(NoModel.) 3 Sheets-Sheet 3.

E. ANDERSON.

` SHINGLE SAWING MACHINE. No. 397,328. Patented Peb'. 5, 1889;'

, Lug-@52E UNITED STATES PATENT OFFICE.

EDVIN ANDERSON, OF TRYON CITY, NORTH CAROLINA.

SHINGLE'FSAWING MACHINE.

SPECIFICATION forming part of Letters Patent No. 397,328, dated February5, 1889.

Application filed May 23, 1888. Serial No. 274,773. (No model.)

' To all whom it may concern:

Be it known that I, EDWIN ANDERSON, of Tryon City, in the county of Polkand State of North Carolina, have invented certain new and usefulImprovements in' Shingle-Sawing Machines 3 an d I do hereby declare thefollowing to be a full, clear, and exact description of the invention,such as will enable others skilled in the art to which it pertains tomake and use it, reference ybeing had to the accompanying drawings,which form a part of this specification.

My invention relates to an improvement in shingle-sawing machines; andthe objects of my invention are to have the carriage, carrying a blockat each end, to reciprocate over a horizontally-revolving saw, so that ashingle is cut at each movement of the carriage; to have theleveling-bars upon which the block is dropped just previous to a shinglebeing sawed alternately tilted or raised, so as to form the butt-end 0fthe shingle upon iirst one end of the block and then the other; torevolve a cam-shaft partially around at each forward motion of thecarriage, and thus alternately raise the tilting-frames, and to soconstruct the parts that straight lumber can be sawed, if so desired.

Figures l and 2 are elevations of a machine embodying -my invention,being taken from opposite sides. Fig. 3 is a plan view of the same. Fig.et is an end view. Fig. is a detached view of the cam-shaft. Fig. 6 is aperspective of one of the tilting frames. Fig. 7

is a detached perspective of the clamp which holds the block. Fig. Sis adetached view showing the lever and the clutch connected thereto, Fig. 9is a detail view showing the cam which operates the slide. Fig. 10 is adetail view of one of the slotted adjustingplates.

A represents a suitable iframe of any desired shape, size, orconstruction. which may be preferred, and j ournaled vertically in oneend thereof is the shaft B, which has suitable driving-pulleys formedupon its lower end. From the lower one o f these pulleys extends a belt,O, which passes around a pulley upon the vertical shaft D, which has thehorizontally-revolving saw E secured toits upper end. From a second oneof the pulleys upon the shaft B extends the belt F,

vso as to be in gear with the wheel I.

around the vertical shaft G, provided with a pulley, and which hassecured to it near its upper end a pinion, Il. This pinion H meshes withthe spur-wheel I, which has teet-h formed upon the upper edge of itshub, so as to engage with the clutch J, which is feathered upon thevertical shaft K, which is journaled upon one side of the frame A.

The vertical shaft G receives its motion from the belt F, and transmitsthis m0- tion through the pinion H and wheel I, the wheel I revolvingidly around upon the shaft without producing any effect upon thecarriage. Vhen, however, the clutch J is in gear with the wheel I, theshaft K is made to revolve, carrying the cam L with it, and then thecarriage is made to reciprocate. This clutch J is operated by the leverM, which is journaled in a suitable bearing, N, secured to the innerside of the frame A, and which lever M has a spring, O, secured toitsinner end, so as to keep its outer end, to which the clutch is secured,always pressed downward,

The inner end of the lever passes through the long operating-lever I),which extends from one end of the frame to the other, and which, whenleft free to move, is drawn upward by the lever M andthe spring O. IVhenit is desiredto raise the clutch J out of contact with the wheel I,either one of the ends of the lever I must be depressed 'and locked downinto position by means of the latch Q upon the end of the frame. Thenthe lever P is locked downward by the latch Q at either end, the innerend of the lever P is de'- pressed and the clutch is raised, so as to,allow the wheel I to freely revolve 'upon the shaft K without operatingit.

Secured horizontally upon the fra-me is a grooved guide, R, in which theendwise-moving slide S, provided with the projections T, is placed.These projections catch upon opposite sides of the cam L, and as the camis made to revolve the slide is moved back and forth. To one end of theslide S is secured the connecting-rod U, and to the outer end of theconnecting-rod is pivoted the lower end of the lever WV. To the upperend of the lever WV is pivoted the connecting-rod V, which is connectedto the carriage, and which has a series of perforations made through it,so that IOO 65 saw another shingle from the block.

.a ceases the point at which it is to be attached to the carriage can beregulated at will.

Secured to the side of the frame A, at one end, is a perforated metalplate, X, through which the pivot upon which the lever lV moves 1ooperator, so as to give the carriage a longer or shorter movement, asmay be desired, without changing the relative heights ot theconnecting-rods U V to the carriage. It' the pivot is passed through theupper hole in the lever,

the carriage will be given a shorter stroke,

whereas if it is passed through the lower hole in the lever it will givethe carriage a longer one. rlhe carriage Y is provided with suitableguides upon its under side, and is made 2o to move back and 'forth inthe ways prepared for it in the usual manner. To each end of thiscarriage is secured a stationai toothed dog, Z, and a movable dog, A',which moves back. and forth in suitable grooved guides, l5',

and which are made to hold the blocks from which the shingle is beingsawed by means of the spring C'. Projecting from the upper side of thismovable dog A.' are two proj ections, D', which pass up throu gh theslotted 3o guide E', secured to the inner side ot' the frame. Theseprojections D', passing through this guide E', serve both to keep thedog A' in, the proper position and to allow it to ad just itself to anyunevenness ot' the block 3 5 from which thc shingles are bein g sawedwithout bindin Projecting from one of thc cross-bars of the carriage Y alever, h", which is slotted at its inner end, so as to catch over oneol' the 4o projections D', and which lever has its outer end, bent orturned atan angle .where it passes through the cross-bar, so as to bearagainst the inner side of the free end of the spring C'. The pressure ofthe spring` C' against this bent or angular end of the lever li" keepsthe dog A' pressed tightly against the block, so as to support it inposition as the carriage moves back and forth; also, projecting from oneend of the cross-bar of the carriage Y is a 5o lever, G', which catchesat its inner end over the outer one of the projections D', and which hasits inner end beveled, so as to act upon the inclined plate H', securedto the frame A. Vhen the carriage is approaching the end of its stroke,the outer beveled end of the lever G' strikes against this inclinedplate H', so as to cause the lever G' to turn upon its pivot and toforce the movable dog A' backward against the pressure of the spring C',and thus 6o allow the block from which the shingle is being sawed, andwhich was held between the stationary dog Z and the movable one A', todrop upon the tiltingI frame before the car riage begins its backwardmovement, and thus This block drops just after it passes the edge of thesaw and before the backward movement of the carriage begins to takeplace. As the carriage moves backward and the end of the lever l'becomes disengaged from the inclined plate H', the movable dog A' againengages with the block and holds it while a shingle is being sawed.

Secured to the opposite inner sides ol.' the frame A are thehorizei1tally-grooved guides l', in which the su1ip(ating-iframe .l' isadjustably held. lhis frame J' is held in any desired 'position in theguides I' by means oli sct-screws fr, and hence as the saw becomes wornaway by sluu'pening this t'rame J" can he adjusted torwarihso as toalways maintain the same relative position to the saw. Pivoted at eachend et' this iramc J' are the tilting bars or i'ranles L', to the ireeends et' which are adj ustal'ily secured the plates M', upon the upperedges oi' which the block is supported when the movable dogs are movedback out of contact with them,and they drop downward ready to haveanother shingle sawed, t'rom them. These plates are slotted at theircenters, and are held in position by means ot' screws or other similardevices, which are passed through the slots, and the ends of theseplates M" are adjusted vertically by the set-screws N', so that theplates can be leveled or adjusted from either end, as may be desired.Passing through these tilting bars L' are the set-screws O', which bearagainst the top of the supporting-frame J', and thus regulate thedistance that the block shall drop downward and the thickness of thebutts of the shingles cut. lhc plates M' can also be adjusted verticallyby the screws u?, to regulate the thickness of the butts, and hence adouble aifljustment is provided t'or this purpose. Ot' course the higherthe tilting frames are raised at their free ends the shorter thedistance the block will drop downward and the thinner their butts willbe.

Passing horizontally through the frame A, and just below thesupporting-frame J', is the shaft Q', which is provided with the camsR',which are set at an angle to each other, and which alternately raise thetilting frames L' throuoh the set-screws S' which. )ass down through thetilting frames and bear upon the cams. The cams are set at an angle toeach other, so that first one tilting frame is operated and then theother, thus causing the ends of the blocks to be alternately raised, andcausing the butt oli' the shingle to be sawed iirst from one end andthen the other. The amount of movement given to the tilting frames bythe cams is regulated bythe setscrews S.

To the outer end of each oi the shalts Q'is rigidly secured a ratchet,T', which is provided with four teeth, and placed loosely upon the endoi'the shafl't next to this ratchet is a plaie or frame, U", which has aspring-actu ated pawl, V', secured thereto, and which pawl, as the plateor i'rame U' is caused to partially revolve, engages with the ratchetIOO IIO

and causes the cam-shaft Q to revolve onefourth around. Secured to eachend of the carriage Y is a suitable arm or projectionV' which has itslower end to enter the recess or opening in the plate U as the carriagemoves forward, and thus cause the plate or frame to partially revolveupon the shaft at the same time that the pawl is engaging with theratchet, and causing the ratchet to partially revolve. As the carriagemoves forward, it returns the plate or frame U back to its position, butwithout moving the shaft. Each time that the shaft Q is turnedone-quarter around by the forward movement of the carriage Y one of thecams R is brought into play, so as to raise first one tilting' frame andthen the other.

Shouldit be, desired at any time to saw straight lumber with thismachine, it is only necessary to move the plate or frame U around, sothat it can not be struck bythe arm IV', and then level the tiltingframes, when straight material can bc sawed as well as shingles.

By making' the outer ends of the inclines II extend in a straight linewith the frame the outer ends of the levers G are held forced back, andthe movable dogs are held back out of contact with the blocks, and insuch a manner that no strain is brought to bear on any of the parts.

After the end of the lever G' has moved beyond the inclined face of theincline H, no further power is exerted beyond the lever G' more than tohold it 'in the position shown in the lower lefthand corner of Fig.Although thc carriage Y may continue its endwise movement, no furtherstrain is brought to bear upon the lever G,because it has passedthatinclined part which acts upon it.

Having thus described my invention, I claiml. The combination of thedriving-shaft, the belts F C, extending' therefrom, the sawshaftjournaled in the frame, provided with the saw D at its upper end andoperated by the belt C, the shaft G, journaled upon the frame A,operated by the belt F, and provided with a pinion, H, the shaft K,journaled upon the frame A and provided -with the wheel I to mesh withthe pinion H, the clutch J, placed upon the shaft K, for locking thewheel. I to the shaft, the lever M, pivoted in the frame N and connectedto the clutch at one end, the spring O, connected to the other end ofthe lever, the operating-lever P, extending endwise of the frame A andconnected to the lever M, and suitable notches, Q, upon the ends of theframe for locking the lever in place while the clutch is out of gear,substantially as shown.

2. In a sawing-machine, the combination of the saw and the reciprocatingcarriage with the shaft K, journaled in the frame A, and

means for operating said shaft, the cam L, se.

cured to its lower end, the guide'R, secured upon the frame, the slideS, placed in the guide R and provided with the projections T, betweenwhich the cam revolves, the connecting-rods U V, the lever W, providedwith a series of perforations and placed in a vertical position on theframe, perforated plate X, secured to one end of the fram e, and thepivot which passes through the plate and lever, and which pivot isadapted to be changed from one hole to another, so as to vary thedistance the carriage shall ino-ve, substantially as described.

The combination of the carriage provided wit-h a stationary dog, themovable dog provided with the projections D', the guide E', throughwhich the projections pass, the guides B', secured to the carriage andbetween which the dogs A move, the lever F', pivoted upon-the carriageand made to catch over one of the projections D at its inner end, thespring C',the pivoted lever G', which catches over one of theprojections upon the sliding dog at its inner end, and the inclinedplate secured to the frame for moving the lever G' and the movable dog,so as to drop the block, substantially as described.

4. The combination of the supporting-frame J', Alocated at one end ofthe frame A, the tilting frames pivoted at their outer ends to thesupporting-frames, the slotted plates M, attached to the free ends ofthe tilting frame, the screws a?, for holding the plates in position,and the set-screws N', which pass through the frames and bear againstthe edges of the plates, substantially as set forth.

5. The combination of the supporting-frame J', the guides I',adjustingscrews, and the saw with the carriage for reciprocating theblock back and forth over the sawand the mechanism for holding theblock, whereby the supporting-frame with its attachments can be adjustedin relation to the saw as the saw becomes worn away, substantially asdescribed.

6. The combination of the supporting-frame J', the tilting' framesattached thereto, the vertically adjustable 'slotted plates M', attachedto their free ends, screws a2, for securing them in position, and theset-screws O', which pass through the tilting frames, the shaft Q',provided with cams R', and a mechanism operated by the carriage forcausing the shaft to revolve at each forward movement of the carriage,substantially as shown.

7. The combination of the cam-shaft, the supporting-frame, and thetilting' frames pivoted thereto, the ratchet rigidly secured to the endof the shaft, the frame U, carrying a pawl loosely placed upon theshaft, the carriage, and the arm which projects downward from thecarriage and operates the frame, substantially as described.

In testimony whereof I affix my signature in presence of two witnesses.

EDIVIN ANDERSON.

Witnesses:

@.HL GooDELL, HENRY C. GooDELL.

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